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Compare models

Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. Muse Spark 1.3MetaRemove
  2. Perceptron Mk1.5PerceptronRemove
  3. Kimi K3.1 ProMoonShot AIRemove
  4. Muse Spark OpenMetaRemove

4 is the maximum. Remove one to add another.

muse-spark-1.3 vs perceptron-mk1.5 vs kimi-k3.1-pro vs muse-spark-open
AttributeMuse Spark 1.3muse-spark-1.3Perceptron Mk1.5perceptron-mk1.5Kimi K3.1 Prokimi-k3.1-proMuse Spark Openmuse-spark-open
Pricing
Input$1.25 / 1M$0.15 / 1M$2.00 / 1M$1.25 / 1M
Output$4.25 / 1M$1.50 / 1M$10.00 / 1M$4.25 / 1M
Cache Write (5m)$1.25 / 1M$0.15 / 1M$2.00 / 1M$1.25 / 1M
Cache Write (1h)$1.25 / 1M$0.15 / 1M$2.00 / 1M$1.25 / 1M
Cache Read$1.25 / 1M$0.15 / 1M$2.00 / 1M$1.25 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context1M36.9K1M1M
Max outputN/AN/AN/AN/A
Capabilities
VisionYesNoYesYes
Function CallingYesNoYesYes
JSON ModeYesNoYesYes
StreamingYesYesYesYes
Catalogue
ProviderMetaPerceptronMoonShot AIMeta
Categorychatchatchatchat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released—2026-09-25——
Description
SummaryMuse Spark 1.3 is Meta's multimodal reasoning model designed for long-running agentic, multi-agent, and coding workflows. It maintains context and information across extended tasks, enabling reliable execution in complex, multi-step environments. The model is optimized to resolve conflicting information, seek clarification or confirmation when necessary, and execute concisely, making it well suited for autonomous agents, collaborative multi-agent systems, and long-horizon software engineering workflows.Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model, building on Kimi K3 with enhanced post-training for advanced reasoning and autonomous task execution. It features a 1M-token context window and native image and video understanding, enabling complex, long-context multimodal workflows. Optimized for long-horizon coding, 3D creation, financial research, and end-to-end agentic knowledge work, Kimi K3.1 Pro is well suited for autonomous software engineering, multimodal analysis, and complex professional workflows that require sustained reasoning and reliable execution.Muse Spark Open is an open-weight, coding-optimized model designed for agentic software engineering workflows. It delivers strong first-attempt accuracy, reliable tool calling, and deep codebase understanding, enabling effective development across real-world repositories. Optimized for autonomous coding agents, complex code navigation, and tool-driven development, Muse Spark Open is well suited for software engineering automation, debugging, code generation, and multi-step coding workflows where accuracy and reliable execution are essential.